所幸的是，这一战略是可测试，有针对性和可优化的。
The good news is, it's a strategy that can be tested, targeted and optimized .
准确预测和计算岩石的力学性质和可钻性是有针对性地优选钻头、优化设计参数，从而提高钻井速度的重要依据。
Exact Prediction and calculation of mechanical property and drillability of rock can provide the necessary base for the optimization of bits and designing parameters, thereby quickening penetration.
文章在对零件的工艺性进行认真分析的基础上，有针对性地设计了模具结构中的凸模和凹模，优化实现了矩形拉伸件的分离冲切过程。
After analysis of process of components, design raised mold and the concave mold in the structure of molds, optimize the pressing-cutting process for the rectangle stretched component.
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